freebsd-dev/usr.sbin/bhyve/bhyverun.h
John Baldwin 461663ddba bhyve: Simplify setting vCPU capabilities.
- Enable VM_CAP_IPI_EXIT in fbsdrun_set_capabilities along with other
  capabilities enabled on all vCPUs.

- Don't call fbsdrun_set_capabilities a second time on the BSP in
  spinup_vcpu.

- To preserve previous behavior, don't unconditionally enable
  unrestricted guest mode on the BSP (this unbreaks single-vCPU guests
  on Nehalem systems, though supporting such setups is of dubious
  value).  Other places that enbale UG on the BSP are careful to check
  the result of the operation and fail if it is not available.

- Don't set any capabilities in spinup_ap().  These are now all
  redundant with earlier settings from spinup_vcpu().

- While here, axe a stale comment from fbsdrun_addcpu().  This
  function is now always called from the main thread for all vCPUs.

Reviewed by:	corvink, markj
Differential Revision:	https://reviews.freebsd.org/D37642
2022-12-21 10:31:16 -08:00

53 lines
1.8 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2011 NetApp, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _FBSDRUN_H_
#define _FBSDRUN_H_
#define VMEXIT_CONTINUE (0)
#define VMEXIT_ABORT (-1)
extern int guest_ncpus;
extern uint16_t cpu_cores, cpu_sockets, cpu_threads;
struct vmctx;
struct vm_exit;
void *paddr_guest2host(struct vmctx *ctx, uintptr_t addr, size_t len);
#ifdef BHYVE_SNAPSHOT
uintptr_t paddr_host2guest(struct vmctx *ctx, void *addr);
#endif
int fbsdrun_virtio_msix(void);
int vmexit_task_switch(struct vmctx *, struct vm_exit *, int *vcpu);
#endif